Seung Jun is a singing coach and part-time singer at weddings, where he performs without any enthusiasm. He is insecure and withdrawn and has suffered panic attacks since being brutally dumped by his first love. Jae Hyun, a newly hired pianist at the wedding venue, becomes instantly besotted when he meets Seung Jun and immediately sets out to pursue him romantically. Seung Jun, while not rejecting Jae Hyun’s advances outright, is unable to let anyone get close to him. As the two continue to work together at weddings, will the warm and outgoing Jae Hyun succeed in wearing down Seung Jun’s defences?